package exp2;

 public class StringBufferDemo{        
   public static void main(String [] args){    
       StringBuffer buffer = new StringBuffer(20);    
       buffer.append('S');     
       buffer.append("tringBuffer");     
       System.out.println(buffer.charAt(1));     
       System.out.println(buffer.capacity());     
       System.out.println(buffer.indexOf("tring12345"));    
       System.out.println("buffer = " + buffer.toString());    
       System.out.println(buffer.length());
  }    
}    